Drain Survey mode performed in error. Symptoms : Drain line is present in the elevation data path. Possible cause : T3C user has recorded in Drain survey mode instead of Field survey mode as intended. Drain lines are in a swath pattern across the field. Solutions : If a user does not wish to resurvey in Field survey mode, they can: Delete drain line T3RRA Design (T3RRA Cutta owners only). Load the project into T3RRA Design Delete the drain line on the Guide tab Export a control file for T3C In Collect step of Wizard: Export data as CSV file Import CSV file into T3RRA Cutta v2.